I built the old Novo 1/72 scale kit many years ago.The modelt was very basic with details.ALso it came without the dorsal turret as it was the early variant of the P-61.I have scratchbuilt all cockpit interiors with opened hatches , the dorsal turret, made new retractable landing gear, scratchbuilt and added the side Radar antennas, opened the cockpit conopy and made the air intakes for the oil radiators opened as well. Generally a nice fun.